The article was reprinted from the publication "Internistas" in 2017. No. 9 (2020) “Ambroxol - to relieve cough”, Slauga. Mokslas ir praktika, (3 (255), pp. 14–15. Available at: https://test.zurnalai.vu.lt/slauga/article/view/19793 (Accessed: 26 October 2025).